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Enrique Jurado-Ruiz, Lourdes M Varela, Amparo Luque, Genoveva Berná, Gladys Cahuana, Enrique Martinez-Force, Rocío Gallego-Durán, Bernat Soria, Baukje de Roos, Manuel Romero Gómez, Franz Martín
SCOPE: We evaluated the protective effect of extra virgin olive oil (EVOO) in high-fat diets (HFDs) on the inflammatory response and liver damage in a nonalcoholic fatty liver disease (NAFLD) mouse model. METHODS AND RESULTS: C57BL/6J mice were fed a standard diet or a lard-based HFD (HFD-L) for 12 wk to develop NAFLD. HFD-fed mice were then divided into four groups and fed for 24 wk with the following: HFD-L, HFD-EVOO, HFD based on phenolics-rich EVOO, and reversion (standard diet)...
October 17, 2016: Molecular Nutrition & Food Research
Huaibo Yuan, Wenjuan Wang, Deyi Chen, Xiping Zhu, Lina Meng
BACKGROUND: Enteric dysbiosis is associated with chronic inflammation and interacts with obesity and insulin resistance. Obesity and diabetes are induced in ICR (Institute of Cancer Research) mice fed a high-fat diet and administered a streptozocin injection. These mice were treated with normal rice (NR), normal rice with a high resistant starch content (NRRS) or Se-rich rice (selenium-enriched rice) with a high resistant starch content (SRRS). RESULTS: Faecal cell counts of Bifidobacterium, Lactobacillus and Enterococcus were significantly higher in SRRS-treated mice than in diabetic controls, while Enterobacter cloacae were lower...
August 26, 2016: Journal of the Science of Food and Agriculture
Arianna Mazzotti, Maria Turchese Caletti, Anna Simona Sasdelli, Lucia Brodosi, Giulio Marchesini
BACKGROUND: The accumulation of fat droplets in the hepatic parenchyma is driven by several factors, synergistically acting to increase triglyceride flow to the liver (diet and metabolic factors, endotoxemia from gut microbiota, genetic factors). KEY MESSAGES: In the presence of unhealthy lifestyles and behavioral factors, leading to enlarged adipose tissue and insulin resistance (IR), both lipolysis and de novo lipogenesis are expected to increase the risk of hepatic lipid depots, in association with high calorie (either high-fat or high-carbohydrate) diets...
2016: Digestive Diseases
Verena Wieser, Timon E Adolph, Barbara Enrich, Patrizia Moser, Alexander R Moschen, Herbert Tilg
BACKGROUND & AIMS: Obesity and its related co-morbidities such as non-alcoholic fatty liver disease (NAFLD) are increasing dramatically worldwide. The genetic variation in Patatin-like phospholipase domain-containing protein 3 (PNPLA3), which is also called adiponutrin (ADPN), in residue 148 (I148M, rs738409) has been associated with NAFLD. However, the regulation and function of PNPLA3 in metabolic diseases remains unclear. Laparoscopic gastric banding (LAGB) of severely obese patients reduces body weight, liver and adipose tissue inflammation...
August 12, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
Marcin Krawczyk, Ewa Stachowska, Piotr Milkiewicz, Frank Lammert, Malgorzata Milkiewicz
BACKGROUND: The adiponutrin (PNPLA3) p.I148M and transmembrane 6 superfamily member 2 (TM6SF2) p.E167K variants represent risk factors for non-alcoholic fatty liver disease (NAFLD). In this study, we assessed the effects of caloric restriction on liver phenotypes in NAFLD patients in relation to the PNPLA3 and TM6SF2 genotypes. METHODS: We genotyped both variants in 143 individuals with NAFLD (55 females, age 18-74 years) and 180 controls (85 females, age 33-66 years)...
2016: Digestion
Hong-Guang Li, Fang-Feng Liu, Hua-Qiang Zhu, Xu Zhou, Jun Lu, Hong Chang, Jin-Hua Hu
ADPN I148M polymorphism has been consistently reported to play a role in liver-associated diseases, such as alcoholic liver disease, chronic hepatitis C, and liver fat and fibrosis in nonalcoholic fatty liver disease. This significant association was also indicated in a series of hepatocellular carcinoma (HCC) studies, where the significance may be affected due to the small sample sizes. The aim of this study was to reexamine the ADPN-HCC association by use of meta-analysis. Biweekly computer-based literature searches plus manual screening were undertaken in an effort to identify all studies that met the predefined inclusion criteria...
November 2015: Medicine (Baltimore)
Atanu Kumar Dutta
Alcoholic liver disease is a major source of morbidity and mortality worldwide. Twin studies had demonstrated heritability of alcoholic liver disease. Although to date only Adiponutrin (PNPLA3) rs738409 polymorphism (I148M) had been unequivocally proved to be associated with increased risk of alcoholic liver disease across different ethnicities. This protein was previously thought to have a predominant lipolytic role. However, recent investigations have provided evidence of lipogenic activity of this protein...
December 2015: Medical Hypotheses
Elena L Enache, Anca Sin, Ligia Bancu, Christophe Ramière, Olivier Diaz, Patrice André, Liviu S Enache
Chronic hepatitis C (CHC) is a major burden for public health worldwide. Although newer direct-acting antivirals show good efficacy, their cost precludes their wide adoption in resource-limited regions. Thus, strategies are being developed to help identify patients with high susceptibility to response to classic PEG-interferon + ribavirin therapy. IL28B polymorphism rs12979860 C/T is an important predictor for an efficient response to interferon-based therapy. A genetic variant in adiponutrin (PNPLA3) gene, rs738409 C/G, is associated with steatosis, severity, and progression of liver fibrosis in CHC patients, and predicts treatment outcome in difficult-to-cure HCV-infected patients with advanced fibrosis...
2015: International Journal of Molecular Sciences
Tsunehiro Ochi, Kensuke Munekage, Masafumi Ono, Takuma Higuchi, Masayuki Tsuda, Yoshihiro Hayashi, Nobuto Okamoto, Katsumi Toda, Shuji Sakamoto, Jude A Oben, Toshiji Saibara
AIM: Non-alcoholic steatohepatitis (NASH) is the major cause of chronic liver disease worldwide. Endoplasmic reticulum (ER) stress is considered to be an important pathological characteristic in NASH. A sequence variation (I148M) in the patatin-like phospholipase domain-containing protein 3/adiponutrin (PNPLA3) gene is known to be associated with the development of NASH. However, PNPLA3 deficiency has been considered to not be associated with fatty liver disease. To clarify, therefore, the role of PNPLA3 in liver, we established PNPLA3 knockout (KO) mice and investigated the phenotypes and involved factors under ER stress...
May 2016: Hepatology Research: the Official Journal of the Japan Society of Hepatology
Marcin Krawczyk, Roman Liebe, Ina B Maier, Anna Janina Engstler, Frank Lammert, Ina Bergheim
Introduction. The common adiponutrin (PNPLA3) variant p.Ile148Met is associated with liver injury. Here, we investigate the association of this polymorphism with hepatic and metabolic traits in a pediatric cohort. Patients and Methods. The study cohort comprised 142 German children (age 5-9 years, 98 overweight, 19 children with NAFLD). Results. Overweight children presented with increased serum ALT (P = 0.001) and GGT (P < 0.001) activities. ALT activities differed significantly (P = 0.02) between carriers of different PNPLA3 genotypes in the entire study cohort, in normal weight children (P = 0...
2015: Gastroenterology Research and Practice
Anita Arslanow, Caroline S Stokes, Susanne N Weber, Frank Grünhage, Frank Lammert, Marcin Krawczyk
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is becoming the most prevalent liver disorder. The PNPLA3 (adiponutrin) variant p.I148M has been identified as common genetic modifier of NAFLD. Our aim was to assess the relationships between genetic risk and non-invasively measured liver fat content. METHODS: Hepatic steatosis was quantified by transient elastography, using the controlled attenuation parameter (CAP) in 174 patients with chronic liver diseases (50% women, age 18-77 years)...
March 2016: Liver International: Official Journal of the International Association for the Study of the Liver
Stefan Traussnigg, Christian Kienbacher, Emina Halilbasic, Christian Rechling, Lili Kazemi-Shirazi, Harald Hofer, Petra Munda, Michael Trauner
Nonalcoholic fatty liver disease (NAFLD) is the hepatic manifestation of the metabolic syndrome and comprises a liver disease spectrum ranging from steatosis to nonalcoholic steatohepatitis (NASH) with risk of progression to liver cirrhosis and hepatocellular carcinoma (HCC). Associated metabolic conditions and comorbidities such as obesity, diabetes and cardiovascular diseases are common and require concerted management. Adiponutrin (PNPLA3) variants may help to identify NAFLD patients at higher risk for liver disease progression towards advanced fibrosis and HCC...
2015: Digestive Diseases
Felix Stickel, Jochen Hampe, Eric Trépo, Christian Datz, Stefano Romeo
Alcoholic liver disease (ALD) accounts for the majority of chronic liver diseases in Western countries, and alcoholic cirrhosis is among the premier causes of liver failure, hepatocellular carcinoma (HCC) and liver-related mortality causes. Studies in different genders and ethnic groups, as well as in twins provide strong evidence for a significant contribution of host genetic factors to liver disease development in drinkers. The intense quest for genetic modifiers of alcohol-induced fibrosis progression have identified and repeatedly confirmed a genetic polymorphism in the gene coding for patatin-like phospholipase domain-containing 3 (PNPLA3; adiponutrin; rs738409 C/G, M148I) as a risk factor for alcoholic cirrhosis and its related complication, HCC, in different populations...
June 2015: Hepatobiliary Surgery and Nutrition
Ching-Jung Hsieh, Pei Wen Wang, Tsung Hui Hu
OBJECTIVE: Patients with type 2 diabetes and nonalcoholic fatty liver disease (NAFLD) have a higher prevalence of cardiovascular diseases. In this study we investigated the frequency of single nucleotide polymorphisms (SNPs) of several candidate genes associated with NAFLD in Taiwanese patients with type 2 diabetes mellitus (DM) and NAFLD and in those with DM but without fatty liver disease. METHODS: We enrolled 350 patients with type 2 DM and NAFLD and 209 patients with DM but without NAFLD...
2015: PloS One
Ning Geng, Yong-Ning Xin, Harry Hua-Xiang Xia, Man Jiang, Jian Wang, Yang Liu, Li-Zhen Chen, Shi-Ying Xuan
CONTEXT: The PNPLA3 I148M variant has been recognized as a genetic determinant of liver fat content and a genetic risk factor of liver damage progression associated with steatohepatitis. The I148M variant is associated with many chronic liver diseases. However, its potential association with inflammatory and autoimmune liver diseases has not been established. EVIDENCE ACQUISITION: We systemically reviewed the potential associations of I148M variant with chronic viral hepatitis, autoimmune liver diseases and the outcome of liver transplantation, explored the underlying molecular mechanisms and tried to translate them into more individualized decision-making and personalized medicine...
April 2015: Hepatitis Monthly
S Petta, E Vanni, E Bugianesi, C Rosso, D Cabibi, C Cammà, V Di Marco, M Eslam, S Grimaudo, F S Macaluso, D McLeod, R M Pipitone, M L Abate, A Smedile, J George, A Craxì
BACKGROUND: The PNPLA3/Adiponutrin rs738409 C/G single nucleotide polymorphism is associated with the severity of steatosis, steatohepatitis and fibrosis in patients with non-alcoholic fatty liver disease, as well as the severity of steatosis and fibrosis in patients with chronic hepatitis C (CHC). AIM: To test in genotype 1(G1)-CHC patients, the putative association between the PNPLA3 variant and histological features of steatohepatitis, as well as their impact on the severity of fibrosis...
May 2015: Alimentary Pharmacology & Therapeutics
Simona Bo, Roberto Gambino, Guido Menato, Stefania Canil, Valentina Ponzo, Silvia Pinach, Marilena Durazzo, Ezio Ghigo, Maurizio Cassader, Giovanni Musso
BACKGROUND: A single nucleotide polymorphism (SNP) of the patatin-like phospholipase-3 (PNPLA3)/adiponutrin gene (rs738409 C>G) is strongly associated with nonalcoholic fatty liver disease; to our knowledge, no data are available on the impact of this PNPLA3 SNP on liver and metabolic outcomes during pregnancy in patients with gestational diabetes (GD). OBJECTIVE: We evaluated the impact of the PNPLA3 rs738409 SNP on liver enzymes, metabolic indexes, and maternal and neonatal outcomes in 200 GD patients enrolled in a lifestyle intervention...
February 2015: American Journal of Clinical Nutrition
Li-Zhen Chen, Yong-Ning Xin, Ning Geng, Man Jiang, Ding-Ding Zhang, Shi-Ying Xuan
Patatin-like phospholipase domain-containing 3 (PNPLA3 or adiponutrin) displays anabolic and catabolic activities in lipid metabolism, and has been reported to be significantly associated with liver fat content. Various studies have established a strong link between the 148 isoleucine to methionine protein variant (I148M) of PNPLA3 and liver diseases, including nonalcoholic fatty liver disease (NAFLD). However, detailed demographic and ethnic characteristics of the I148M variant and its role in the development of nonalcoholic fatty liver fibrosis have not been fully elucidated...
January 21, 2015: World Journal of Gastroenterology: WJG
Kohichiroh Yasui, Takahisa Kawaguchi, Toshihide Shima, Hironori Mitsuyoshi, Kojiro Seki, Rei Sendo, Masayuki Mizuno, Yoshito Itoh, Fumihiko Matsuda, Takeshi Okanoue
BACKGROUND: Host genetic factors have been suspected to influence histological liver damage in chronic liver disease. The nonsynonymous single-nucleotide polymorphism rs738409 C > G in the patatin-like phospholipase domain-containing 3 gene (PNPLA3, also known as adiponutrin), encoding the I148 M protein variant, has been identified as a novel genetic marker for hepatic steatosis and fibrosis in nonalcoholic fatty liver disease and alcoholic liver disease. We aimed to determine whether the PNPLA3 rs738409 variant was associated with hepatic steatosis, necroinflammation, and fibrosis in Japanese patients with chronic hepatitis C...
August 2015: Journal of Gastroenterology
Marcin Krawczyk, Malgorzata Milkiewicz, Hanns-Ulrich Marschall, Clemens Bartz, Frank Grünhage, Ewa Wunsch, Piotr Milkiewicz, Frank Lammert
Lysophosphatidic acid (LPA) mediates cholestatic pruritus. Recently the enzyme PNPLA3, expressed in liver and skin, was demonstrated to metabolise LPA. Here we assess the association of the PNPLA3 variant p.Ile148Met, known to be associated with (non-)alcoholic fatty liver disease (NAFLD) in genome-wide association studies, with cholestatic itch in 187 patients with primary biliary cirrhosis (PBC) and 250 PBC-free controls as well as 201 women with intrahepatic cholestasis of pregnancy (ICP) and 198 female controls without a history of ICP...
October 9, 2014: Scientific Reports
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